SSM框架展示HDFS文件列表，上传文件，删除文件，下载文件前后端代码

前端代码：

文件列表展示：

<table id="fileListTable">
    <thead>
        <tr>
            <th>文件名</th>
            <th>大小</th>
            <th>修改日期</th>
            <th>操作</th>
        </tr>
    </thead>
    <tbody>
        <tr v-for="file in fileList">
            <td>{{ file.name }}</td>
            <td>{{ file.size }}</td>
            <td>{{ file.modificationTime }}</td>
            <td>
                <a @click="deleteFile(file)">删除</a>
                <a :href="'/download?path=' + file.path">下载</a>
            </td>
        </tr>
    </tbody>
</table>

上传文件：

<form enctype="multipart/form-data">
    <input type="file" name="file"/>
    <button type="button" @click="uploadFile">上传</button>
</form>

后端代码：

文件列表展示：

@RequestMapping("/list")
@ResponseBody
public List<FileVO> getFileList(String path) throws IOException {
    FileSystem fs = FileSystem.get(new Configuration());
    FileStatus[] fileStatuses = fs.listStatus(new Path(path));
    List<FileVO> fileList = new ArrayList<>();
    for (FileStatus fileStatus : fileStatuses) {
        FileVO fileVO = new FileVO();
        fileVO.setName(fileStatus.getPath().getName());
        fileVO.setPath(fileStatus.getPath().toString());
        fileVO.setSize(fileStatus.getLen());
        fileVO.setModificationTime(fileStatus.getModificationTime());
        fileList.add(fileVO);
    }
    return fileList;
}

上传文件：

@RequestMapping("/upload")
public String uploadFile(MultipartFile file) throws IOException {
    FileSystem fs = FileSystem.get(new Configuration());
    String fileName = file.getOriginalFilename();
    Path path = new Path("/upload/" + fileName);
    FSDataOutputStream outputStream = fs.create(path);
    outputStream.write(file.getBytes());
    outputStream.close();
    return "redirect:/index.html";
}

删除文件：

@RequestMapping("/delete")
public String deleteFile(String path) throws IOException {
    FileSystem fs = FileSystem.get(new Configuration());
    Path filePath = new Path(path);
    fs.delete(filePath, false);
    return "redirect:/index.html";
}

下载文件：

@RequestMapping("/download")
public void downloadFile(String path, HttpServletResponse response) throws IOException {
    FileSystem fs = FileSystem.get(new Configuration());
    Path filePath = new Path(path);
    FSDataInputStream inputStream = fs.open(filePath);
    OutputStream outputStream = response.getOutputStream();
    response.setHeader("Content-Disposition", "attachment; filename=" + filePath.getName());
    IOUtils.copyBytes(inputStream, outputStream, 4096, true);
}

文件 VO 类：

public class FileVO {
    private String name;
    private String path;
    private long size;
    private long modificationTime;

    // getter and setter
}